code: def test_literal_pprint():
      l = Literal(5)
      print(str(l))
      assert str(l) == "0 Literal{5}"
  
imports: from hyperopt.pyll import base
  from hyperopt.pyll.base import Literal, as_apply, Apply, dfs, scope, rec_eval, p0, Lambda, clone_merge
  from nose import SkipTest
  from nose.tools import assert_raises
  import numpy
label_desc: Use image node_id 1 for calling a global function with example usage: test_literal_pprint() without return types